Machine for operating on welts.



Y J. GOULD BOURN. MACHINE FOB OPERATING 0N WBLTB.

APPLIOATIQN FILED AUG. 7, 1909.

996,483. I 3 Patented June 27, 1911 2 SHEETS-SHEET 1.

| 'Q/E ITU J. GOULDBOURN. MACHINE FOR OPERATING 0N WBLTS;

APPLIOATIOH FILED AUG. 7,1900.

996,483. Patented June 27,1911.'

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7 W a mamvw rut NORRIS PETERS cm, wnsnmm'on, n. c

. tate the adjustment of the resistance offered JOSEPH GOULDBOURN, or LrcEsT n,

MACHINERY COMPANY, OF PATERS NEW JERSEY.

ENGE p, A$SIGJ,TOR To UNITED SHOE ON, NEW JERSEY, A CORPORATION orMACHINE FoR OPERATING oN wELTs.

Specification of Application filed August 7,

To all whom it may concern:

Be it known that I, JOSEPH GoULDBoURN, a subject of the King of GreatBritain, residing at Leicester, in the county of Leicester, England,have invented certain new and useful Improvements in Machines forOperating on elts; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will e11- ableothers skilled in the art to which it appertains to make and use thesame.

The invention relates to welt beating machines, and more particularly tothe mechanism through which the hammer or beating tool is rapidlyactuated to deliver cushioned or yielding blows upon the welt.

The objects of the invention are to faciliby the spring through whichthe cushioning of the hammer blows is effected, to facilitate theadjustment of the hammer to operate upon welts of different thickness,and to reduce the vibration incident to the rapid operation of thehammer.

To these ends one feature of the invention contemplates the provision ina welt beating machine provided with connecting mechanism between theactuator and the hammer, including a spring for causing the hammer todeliver yielding blows upon the welt, of means for adjusting the hammerin its line of movement without altering the tension of the spring.Another feature contemplates the provision of means for adjusting thetension of the spring without altering the position of the hammer. Bythese independent adjustments the hammer may be adjusted in accordancewith the thickness of the welt being operated upon, and after the properadjustment has been made the force of the blows delivered by the hammermay be varied in accordance with the quality of the welts withoutdisturbing the adjustment of the hammer. Likewise, any adjustment of thehammer required by variations in the thickness of diiferent welts may bemade without change in the force of the blows delivered by the hammer.Thus proper adjustments of the hammer and spring may be quickly andconveniently made to secure the proper and most efficient action of thehammer upon welts of differing thickness and qualit L t e PatentPatented June 27, 1911. 1909. Serial No. 511,703.

pendent adjustment of the hammer is provided for by mounting theconnecting mechanism between the actuator and hammer upon a supportwhich is itself adjustable for the purpose of adjusting the hammer. Thepreferred construction for independently adjusting the spring comprisesa mechanism connecting the actuator and hammer includ ing two membersprovided with stops pressed together by a spring interposed be tweenabutments on the members which are relatively adjustable to vary thetension of the spring while the stops remain in contact.

In accordance with another feature of the invention,- the spring andadjusting devices, together with their carrying members and the hammer,are so arranged that they are balanced about their center of movement sothat they may oscillate or reciprocate at a high rate of speed withcomparatively little vibration.

The various features of the invention will be understood from aninspection of the accompanying drawings, which show a welt beatingmachine embodying the various features of the invention in theirpreferred form.

In the drawings Figure 1 is a side elevation with certain parts insection of a welt beating and slitting machine embodying the features ofthe invention in their preferred form; Fig. 2 is a front elevation, andFig. 3 is.a side View of the connecting mechanism between the actuatorand hammer.

In the drawings A indicates the frame of the machine which has journaledin its upper portion a driving shaft 13 carrying an eccentric B, whicheccentric actuates a hammer C through a connecting rod D and otherconnecting mechanism hereinafter to be described.

An anvil or work support L is secured by tongue and forwardly projectedfrom the frame A of the machine. The knee L is slotted at L and receivesa bolt L by means of which the anvil L may be adjusted forward andbackward to bring it to proper cooperative relationship with the hammerG.

A welt-slitting knife M is supported by a knife carrier M, the saidknife being held within a holder M mounted upon the forward end of thesaid knife carrier. The

In the preferred construction, the indeknife is dove-tailed in crosssection and the groove connections to a knee L under compression by thehammer.

knife holder M is slotted so that the knife may be clamped by a bolt Mand held in adjusted position. The knife carrier M is mounted toreciprocate in a guideway on a 5 plate N secured to the frame of themaries a cam roll 0 which engages a cam path P in a cam disk P mountedupon a stud P projecting from the frame of the machine. The cam disk Pis rotated from a worm-wheel P which is driven from a worm mounted uponthe driving shaft B of the machine.

The hammer C, hereinbefore referred to, is carried upon a plunger G thatreciprocates vertically in a guide C pivoted at C upon a bracket Ccarried by the frame of the machine. The hammerC has a cavity C out inits face as is usual in this type of machine to permit the access of theknife M to cut slits in the welt of a 'boot or shoe while The upper endof the hammer plunger C is pivotally connected at E to one arm of alever E that is pivoted on a sleeve Z mounted upon a shaft F, a setscrew O and lock nut 0 being provided to secure the pivot E to thehammer plunger. A second lever Gr is also pivoted upon the shaft F, thelower arm of which lever is pivotally connected to the connecting rod Dhereinbefore referred to and thus by an eccentric strap D with theeccentric B on the driving shaft B.

The lever G has an arm G which is hollowed out at G to receive a spiralspring G which spring supports a plunger G The lever B supporting thehammer has an arm E which carries a set screw E the end of which abutsagainst the plunger G. Stop faces E and Gr (see Fig. 3) are provided onthe two levers E and G respectively so that the motion between them maybe 11mited in the direction in which the spring G tends to separatethem, the degree of tension of the spring G being regulated by the setscrew E which is then locked in its ad justed position by a lock nut EBy this means the lever G which is driven by the eccentric B through theconnecting rod D imparts through the spring G and stop G -a rockingmotion to the lever E which in turn reciprocates the hammer plunger Cand hammer G, the spring G enabling the lever E to yield to theresistance offered by the work so that the hammer strikes a yieldingblow, the force of the blow being regulated by adjusting the tension ofthe spring without altering the position of the hammer.

In order that the distance of the face of the hammer from the anvil Lmay be adjusted, the shaft F upon which the levers E and G are pivotedis eccentrically mounted upon journals F and F forming part of the saidshaft, and are carried in bear-lugs F and F in upstanding extensions Ffrom the 4 frame of the machine. A handle H is mounted on the said shaftF and secured from turning upon it by a pin H. By moving the handle Hthe shaft F is rotated upon its eccentrically mounted parts and by thismeans the levers E and G and with them the hammer C may be adjusted toor from the anvil L in a vertical direction without disturbing theadjustment of the spring or its relationship to the rest of the hammeroperating mechanism carried by the shaft F. The shaft F can be retainedin its adjusted position by a friction spring K between a nut K on theshaft and the face of the bearing F 4 which thus secures the j ournal Fagainst accidental rotation.

A convenient form of construction according to the present invention isto make the arms E and G of the levers E and G together with thespring-pressed plunger G and its adjusting devices to balance the hammerC, hammer plunger C and the connecting rod 1) about their axis ofoscillation.

By this means the vibration, wear and tear and noise incident to therapid operation of the hammer is greatly reduced.

lVhile it is preferred to employ the specific construction andarrangement of parts shown and described, since this construction andarrangement is the most simple and efficient embodiment of the inventionwhich has yet been devised, it will be understood that this constructionand arrangement is not essential except so far as it is specified in theclaims, and that it may be varied and modified without departing fromthe broader features of the invention.

Having explained the nature and object of the invention, andspecifically described one construction in which it may be embodied,what I claim is l. A machine for operating on welts, having, incombination, a welt beating hammer, an actuator therefor, connectingmechanism between the actuator and hammer including a spring for causingthe hammer to deliver cushioned blows upon the welt, and means foradjusting said hammer in its line of movement without altering thetension of the spring, substantially as described.

2. A machine for operating on welts, having, in combination, a weltbeating hammer,

an actuator therefor, connecting mechanism an actuator therefor,connecting mechanism between the actuator and hammer including a springfor causing the hammer to deliver cushioned blows upon the welt, and anad justable eccentrioally mounted support upon which said mechanism ismounted, substan tially as described.

41. A machine for operating on welts, having, in combination, a weltbeating hammer,

an actuator therefor, connecting mechanism between the actuator andhammer including a spring for causing the hammer to deliver cushionedblows upon the welt, and means for adjusting the tension of the springwithout disturbing the adjustment of the hammer, substantially asdescribed.

5. A machine for operating on welts, having, in combination, a weltbeating hammer, actuating mechanism therefor including a spring forcausing thehammer to deliver cushioned blows upon the welt, and meansfor adjusting the tension of the spring without disturbing theadjustment of the hammer, substantially as described.

6. A machine for operating on welts, having, in combination, a weltbeating hammer, actuating mechanism therefor including a spring forcausing the hammer to deliver cushioned blows upon the welt, means foradjusting the hammer in its line of movement without altering thetension of the spring, and means for adjusting the tension of the springwithout altering the adjustment of the hammer, substantially asdescribed.

7. A machine for operating on welts, having, in combination, a weltbeating hammer, an actuator therefor, connecting mechanism between theactuator and hammer including a spring for causing the hammer to delivercushioned blows upon the welt, means for adjusting the hammer in itsline of movement without altering the tension of the spring, and meansfor adjusting the tension of the spring without altering the adjustmentof the hammer, substantially as described.

8. A machine for operating on welts, having, in combination, a weltbeating hammer, an actuator therefor, connecting mechanism between theactuator and hammer including two relatively movable members, a springinterposed between the members, stops for limiting the movement of themembers by the spring, and relatively adjustable abutments for varyingthe tension of the spring, substantially as described.

9. A machine for operating on welts, having, in combination, a weltbeating hammer, an actuator therefor, two concentrically mounted leversconnected respectively with the actuator and hammer, a spring interposedbet-ween the levers for cushioning the blows of the hammer, stops on thelevers for limiting the relative movement of the levers by the spring,and means for adjusting the tension of the spring, substantially asdescribed.

10. A machine for operating on welts, having, in combination, a weltbeating hammer, an actuator therefor, two concentrically mounted leversconnected respectively with the actuator and hammer, a spring interposedbetween the levers for cushioning the blows of the hammer, stops on thelevers for limiting the relative movement of the levers by the spring,means for adjusting the tension of the spring, and an adjustable shafthaving eccentric bearings on which said levers are mounted,substantially as described.

11. A machine for operating on welts, having, in combination, a weltbeating hammer, an actuator therefor, two relatively movable membersconnected respectively to the hammer and actuator, a spring interposedbetween the members for causing the hammer to deliver cushioned blowsupon the welt, devices for adjusting the tension of the spring, and apivotal support for said members so arranged that the members and hammerare balanced about the axis of said support, substantially as described.

12. A machine for operating on welts, having, in combination, a weltbeating ham mer, an actuator therefor, two concentrically mounted leversconnected respectively to the hammer and actuator, a spring interposedbetween the levers for causing 'the hammer to deliver cushioned blowsupon the welt, and devices for adjusting the tension of the spring, thesupports for the spring and adjusting devices being arranged to balancethe hammer and connections, substantially as described.

13. A .machine for operating on welts, having in combination, a weltbeating hammer, actuating mechanism including a spring for causing thehammer to deliver cushioned blows upon the welt, and rotary meansadapted to move one end of the spring relatively to the opposite end inorder to adjust the tension of the spring without disturbing theadjustment of the hammer, substantially as described.

JOSEPH GOULDBOURN.

Witnesses ARTHUR ERNEST JERRAM, ELEANOR PYWELL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. C.

